Several theories on the Postmodernity have denied the absolute speeches that were establishing the Occidental Civilization. This way, the same History and his its traditional relation with novel is being questioned and there arise voices that claim the possibilities of the fiction to speak about the reality. Already, they will not do this from the veracity of the historical information but from the "ethics"; it is the Postmodern Realism. El comprador de aniversarios de Adolfo García Ortega takes part of these poetics recovering the real and literary figure of Hurbinek, a child murdered in Auschvitz, to whom he plays at creating futures -anniversaries- as a way of social and historical denunciation. The novel presents this way a particular and postmodern use of the classic metaficción, antagonist of the mímesis, cornerstone of the traditional realism.